The Effects of Adding Elements of Zinc and Magnesium on Ag-Cu Eutectic Alloy for Warming Acupuncture

Table 1

Results of composition, drawing diameter, and straightness.

Materials	Ag (wt%)	Cu (wt%)	Zn (wt%)	Mg (wt%)	Drawing process; (diameter, mm)	Straightness; (gap length, mm)
Ag80	80	20			0.5	Broken wire
Ag72	72	28			3	Broken wire
Ag70	70	30			0.4	3.85±0.41
Ag60	60	40			4.5	Broken wire
Ag40	40	60			0.7	Broken wire
Ag30	30	70			0.4	2.42±0.31
Ag20	20	80			0.8	Broken wire
Ag65-Cu30-Zn5	65	30	5		0.4	2.94±0.81
Ag68-Cu30-Mg2	68	30		2	0.4	2.12±0.35